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kirza4 [7]
3 years ago
15

A national survey of middle-school students asks which subject is most challenging. Which of these samples is a representative s

ample? A. 372 sixth-graders in a certain town B. 972 seventh-graders in a certain county C. 619 eighth-graders in different states D. 400 students from various states, representing different grades, 6–8
Mathematics
1 answer:
Bezzdna [24]3 years ago
7 0
The answer would be D, since a representative sample is a set chosen from a larger statistical population.
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Which transformations could have been used to create A'B'C'? Choose all that apply.
Eduardwww [97]

The correct transformation is a rotation of 180° around the origin followed by a translation of 3 units up and 1 unit to the left.

<h3>Which transformation is used to get A'B'C'?</h3>

To analyze this we can only follow one of the vertices of the triangle.

Let's follow A.

A starts at (3, 4). If we apply a rotation of 180° about the origin, we end up in the third quadrant in the coordinates:

(-3, -4)

Now if you look at A', you can see that the coordinates are:

A' = (-4, -1)

To go from (-3, -4) to (-4, -1), we move one unit to the left and 3 units up.

Then the complete transformation is:

A rotation of 180° around the origin, followed by a translation of 3 units up and 1 unit to the left.

If you want to learn more about transformations:

brainly.com/question/4289712

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6 0
1 year ago
Joe needs to read 4 novels each month.
marusya05 [52]

9514 1404 393

Answer:

  • N = 4M
  • 44

Step-by-step explanation:

If Joe reads 4 novels each month, the number of novels read will be 4 times the number of months that have passed.

  N = 4M

__

When M=11, we have ...

  N = 4×11 = 44

Joe needs to read 44 novels in 11 months.

4 0
2 years ago
What is the surface area of this net?
balandron [24]

Answer:

It is 27.4

Step-by-step explanation:

First you need to find the area of the three rectangle.

Area=base*high

You do 4*2 for about 3 times

Which is 8 for 4*2

Then you multiply it 3 more time and get 24.

After that you add 24+1.7+1.7 and get 27.4

4 0
2 years ago
Which phrase correctly represents the algebraic expression for 22-n?
Harrizon [31]

Answer:

D

Step-by-step explanation:

3 0
2 years ago
A local farm sells produce to a large grocery chain. The grocery store uses a 28% markup on the farms produce. Of the farm sells
kkurt [141]

Answer:

$3.84

Step-by-step explanation

move the decimal back two place - .28, it is a mark up so add a 1 at the beginning - 1.28 - multiply - 3 x 1.28 = 3.84

5 0
3 years ago
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